Improvement in sawing-machines



UNITED STATES PATENT OFFICE.

-ADDISON SMITH, OF PERRYSBURG, OHIO.

IMPROVEMENT IN SAWING-MACHIES.

. Specification forming part of Letters Patent No. l 02,606, dated Mayy3, 1870; antedated April 23, 1870.

To a/ZZ whom it may concern.:

Be it known that I, ADDrsoN SMITH, of Perrysburg, in the county of Voodand State of Ohio, have invented a new and useful Improvement inHand-Power Saws; and I do hereby declare the following description,taken in connection with the accompanying plate of drawings, hereinafterreferred to, forms a full and exact specification of the same, wherein Ihave set forth the nature and principles of my said improvement, bywhich my invention may be distinguished from others of a similar class,together with such parts as I claim and desire to secure by LettersPatent.

The nature of my invention consists in reciprocating a drag-saw bar bymeans of a metallic fly-wheel, to the axes of which a spurgear, commonlytermed a sun-wheel]7 is firmly secured, which said sun-wheel isconnectedand actuated by a spur-gear, commonly termcd a planet-gear, revolvingabout the' same, and operated by a connecting-rod attached to the saidplanet-wheel by means of a hinge 5 in securing the frame supporting thedevices aforesaid in position by means of metallic shoes and fastenings;and in an appliance termed a sliding guide,77 which holds the said sawin position and forces the same against the wood to be cut.

In the accompanying plate of drawings, which illustrate my invention andform a part thereof, and in which like parts are represented by similarletters, Figure 1 is a perspective View, showing the application andoperation of my invention when the saw is made to reciprocate in avertical plane. Fig. 2 repv resents the saw reciprocating in ahorizontal plane, and illustrates the devices made use of for holdingthe same in position. Fig.- 3 is a detached view.

The construction of my invention is as follows: The saw-bar A isattached to the driving-wheel B by the crank-pin I).

The said wheel is rigidly attached to the cylindrical shaft C, which hasits bearings in journal-boxes upon the longitudinal bars D and E of theframe. The said frame is secured in position by means of the perforatedmetallic strap d, bolted to the end of the beam' which fits over thetapering pivot-bolt d, secured to the substance to be cut, and theangular metallic feet f, bolted to the legs F of the center of theplanet-Wheel K, by means of the metallic strap L, which preserves aconstant distance vbetween the respective centers of the said gears, andhas its bearings upon journal e, about which it revolves. The handle orconnecting-rod M is connected with the planetwheel aforesaid by means ofthe hinge N. When it is desirable to canse the saw to recirocate yin ahorizontal plane, a modification in details, as set forth above, becomesnecessary, to wit: The driving-wheel B revolves upon a vertical shaft,C, having its bearings in .journal boxes secured to the longitudinalbeams O, Fig. 2. The saw-bar A rests upon the transverse beam P of theframe, and the saw-blade is held in position and forced against thesubstance to be cut by means of the travcling guide R, which slides uponthe metallic rail S, and is operated by the Weight T, attached to thesame by means of the cord u.

The operation of my invention is as follows: The tapering pivot-pin dhaving been driven into the substance to be sawed, the eye in themetallic strap d, attached to the beam D, isY

dropped over lthe same, thus preventing the machine from being movedlongitudinally,but

allowingthe saw to assume any angle with the substance tov be cut whichmay be deemed desirable. The spurs on blades j' are then inserted, andthe machine is secured firmly in position, Power being applied at theconnecting-rod or handle, a reciprocating motion is imparted to thesame, which is converted into rotary motion by means of the applianceshereinbefore described-5. e., the planet-wheel K, by the motion receivedfrom the connectingrod, is made to circulate around the central wheel orsun-gear, I, communicating to the said sun-wheel a velocity ofrevolution four times rIhe said sun-gear, being keyed to the axle of thedriving-wheel B, imparts the rotary motion to the same required for thel The sun-gear Lplanet-gear K, strap L, when purpose of actuating thesaw-b1ade Q. combined with the axle C and handle O, and Having thusstated the nature of my inven arranged to operate as and for thepurposes ton, and described the construction and operdescribed.

ation of the devices and appliances made use ADDISON SMITH.

of in developing the same, I will indicate those Vitiresses:

features which I claim to be new and desire E. E. SMITH,

t) secure by Letters Patent- 1 I. J. HERRMAN.

